Magnetic bearing assembly for rotating machinery
US11005336B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2020 |
| Grant date | May 11, 2021 |
| Priority date | — |
| Expiry date | Apr 28, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2380/26
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A rotating machine includes a housing, a rotor shaft to rotate about a longitudinal axis, a position sensor to detect a position of the rotor shaft within the housing, and a magnetic bearing assembly coupled to the housing to support the rotor shaft within the housing. The magnetic bearing assembly includes an active magnetic bearing for active support of the rotor shaft, such as a thrust bearing actuator to produce an axial force component that is parallel to the central longitudinal axis and a radial force component that is orthogonal to the central longitudinal axis and axially offset from the thrust bearing actuator. The magnetic bearing assembly also includes a passive magnetic radial bearing to radially support the rotor shaft within the housing. A controller electrically coupled to the active magnetic bearing controls a control current to the active magnetic bearing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.